Highly optimized portable speakerphone Bluetooth v3.0 A2DP & AVRCP Audio out port can work as a Bluetooth transmitter from your phone to your stereo system Connect to two devices simultaneously Echo and noise cancellation Dedicated On/Off switch Volume Up/Down button Multi-Function button and LED Talk time: Up to 16hrs Streaming time: Up to 14hrs Standby time: Min 40 days Charge time: Min 2.5hrs Dimensions: 89.1mm x 57.9mm x 27.5mm / 3.50” x 2.28” x 1.08” Weight: 98g/.22lbs 3.5mm stereo audio output jack